Valve.



G. A. BLAH.

VALVE.

APPLIoAjrIoN Hum MN. 22, 1907.

Patented July 6, 1909.

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UNITED STATES PATENT tlilllllfCE.

' suenen struts; or New MAssAeuesirrrs.

VALVE;

Patented July G, 1909. Application filed January 22, 1907. Serial No. 353,540.

No. 927,100. Specification ofiLetters Patent.

liar ynut lfl which thus l'orins a part or tue l valve, a sintable Washer l5 heine; inlerpos-:Jd lelow the lower l'ace of said nut and the To all whom 'it muy concern:

Be it known that l, Cotonou A. BLAKE, a eitizenof the United States, and resident of New Bedford, ristol county, State of Massal ehusetts, have invented certain new and usey l'ul improvements in Valves, of which the lollowil'xg is a speeilication.

'lhe present invention relates to improvements in valves particularly adapted lor use with lluid under relatively high pressure and l the primary object ol the invention iste prok i videa valve of this character that can be more readily repaired if necessary than valves of the saine type commonly in use.

A. further object of the invention is to provide such a. vulve which will be free from any objectionable noise or water hammer77 and will operate as quietly as do valves mating;I under ordinary pressures.

In the aecon'ipanying drawing, Figure l is y a sectional view through a 'faucet having;` a valve constructed in accordance with this invention, showing,r the val ve closed; Fig. 2 a similar view showing' the valve lifted l'roin its seat; Fig. il is a, sectional View tlu'oug'h a tank valve embodying the invention.

ReferringI A[nlrticularly to Figs. l and 2, the valve easingl l, is provided at its inlet. end with a threadml sclietion 2, by nieanf-i of which it may he suitably connected: with a supply pipe; and has an interior valve seat 3 with which cooperates the valve 4. The casing l is made ol such torni that chambers 5, (i, are foiuned on o -)posite sides olt the lluid passuge and the valve seat, thel outer ond of the chamber 5 beinev closed hy a removable cap 7; and the outer end el the chamber 6 having therein an aperture through which the stein l of the valve passes. An operating lever 9 is suitably connected with the lower eiid'of thev valve stein which projects beyond the casing und by means of said lever the valve may be lifted from its sont to open tho'lluid passage through the 'casing l. As shown said lever is fulcrumed et l() upon the valve easing and is provided with two slots or apertures 11, 12, through which extend, ren spectively, the lower end ol the valve stem and the curved discharge or outlet end of the vulve casing er faucet body. The portion of the vulve that extends through said opel ing lover is reduced in diameter and a pin or liey 13 extends transversely through the sinne below the lever.4 The stem of the valve extends above the seat 3 und on such upward nejecting` seotion is screwed e cireu the seat 3 und lits closely within the chamber (L'wherrhv there is provided au air cushion Vlor resisting the closing movement ol the valve noise, .'ihe piston 1.0 `is ol' such diameter that it ean pass through the opening;I in the valve 'uit and therefore in case `it is desired to repair or replace the valve it is only necessary to remove the cap 7 and disemniect the lever from they stem 8 when the entire valve can be liltcd l'ronl the 'using'. By this een-- struction, therefore, it is possible to inspect 'l or entirely remove the vn lvc witl'iout disconnecting the casini;r or detaching the several parts ofthe valve itself.

ln the l'orm of the invention shown in lille'. f3, the valve. casing;v is provided with a, chainber 17 above the valve similar to the upper chamber ol the valve casing shown in Figs. il and 2, said chamber being close-d by a. detaehable cap lo; and the valve is held elosed Stom ll) in this embodiment ot the invention is engaged 'with an arni 2() on a lever 2l having formed therein two sockets with either ol ywhich, the threaded stein 22 oi' an ordinary ilout lever may be connected. When the supply pipe enters the top, said Yfloat stein. will be connected, as shown in Fig. 3. fil', l'ioivever, the supply pipe enters the tank from the bottom, in which case the valve easing will extend vertically, said stem 22 will be secured in the other sooke'tol the lover 21.

It will be seen that the lluid does not pass directly through the chamber in which the valve head moves, although the l'ull pressure of the lluid is utilized to move the valveitoward and' hold it against the valry closing fiction of the volvo heilig; sisted by its Weight, or gravity, so tl i as- .l' itis valvehezul/l. rl he enlarged upper portion ol',

cured, or formed, upon the 'valve stem belmv and proventing; such a sudden downward movement us to causo an objeetmnablo by the pressure ol' lluid in, the easing. The

ist, such4 valve is employed with a tank in which the Well adapted for either low or high pressure service.

In the form of the invention shown in Figs. 1 and 2, the piston 16 and air chamber ,G not only act asa check to the valve when The combinati on of a valve casing having a horizontal valve seat formed therein, and ro vided with two chambers 5, 6, arranger respectively above and below said valve scat, a

'valve stein eXtending through the chamber 6 and the valve seat, a valve mounted on the upper end of said stem and having its upper end projecting into the upper chamber 5, a removable closure for the chamber-5, a pisezmoo t0n secured to the valve stem within the chamber 6, the parts being so arranged and proportioned that when the valve is closed the full pressure of fluid controlled by the valve aets upon the upper surface thereof and when the valve is open the l'luid pressure exerted in opposite directions on the valve and piston is substantially equal and the valve and 4piston fitting their respective o chambers so closely that n o special packing is required, and means for raising the valve from its seat and connected with the valve easing and valve independently of the removable closure for the chamber 5.

In testimony whereof I ailix my signature in presence of two witnesses.

GEORGE A. BLAKE.

Witnesses: I

J E. LANDiins, HARRY I). TRoF'roN. 

